From 54da5e9522d662655631f4e76e90381d6e6bb84d Mon Sep 17 00:00:00 2001
From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Tue, 26 Feb 2013 16:47:58 +0100
Subject: [PATCH] Work-around for Xt selection bug

In some Xt implementations calling extend-end with 0 params causes a crash,
although the mmanual specifies this should default to a call with 'PRIMARY'.
The default selection is now explicitly mentioned in all extend-end calls.
---
 xaw/xboard.c        |    2 +-
 xaw/xengineoutput.c |    4 ++--
 xaw/xhistory.c      |    2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/xaw/xboard.c b/xaw/xboard.c
index e162be7..7986db9 100644
--- a/xaw/xboard.c
+++ b/xaw/xboard.c
@@ -418,7 +418,7 @@ char ICSInputTranslations[] =
 
 // [HGM] vari: another hideous kludge: call extend-end first so we can be sure select-start works,
 //             as the widget is destroyed before the up-click can call extend-end
-char commentTranslations[] = "<Btn3Down>: extend-end() select-start() CommentClick() \n";
+char commentTranslations[] = "<Btn3Down>: extend-end(PRIMARY) select-start() CommentClick() \n";
 
 String xboardResources[] = {
     "*Error*translations: #override\\n <Key>Return: ErrorPopDown()",
diff --git a/xaw/xengineoutput.c b/xaw/xengineoutput.c
index 1a63866..fb2b565 100644
--- a/xaw/xengineoutput.c
+++ b/xaw/xengineoutput.c
@@ -165,8 +165,8 @@ InsertIntoMemo (int which, char * text, int where)
 char memoTranslations[] =
 ":Ctrl<Key>c: CopyMemoProc() \n \
 <Btn3Motion>: HandlePV() \n \
-Shift<Btn3Down>: select-start() extend-end() SelectPV(1) \n \
-Any<Btn3Down>: select-start() extend-end() SelectPV(0) \n \
+Shift<Btn3Down>: select-start() extend-end(PRIMARY) SelectPV(1) \n \
+Any<Btn3Down>: select-start() extend-end(PRIMARY) SelectPV(0) \n \
 <Btn3Up>: StopPV() \n";
 
 void
diff --git a/xaw/xhistory.c b/xaw/xhistory.c
index 8b6adb1..edaf8c3 100644
--- a/xaw/xhistory.c
+++ b/xaw/xhistory.c
@@ -99,7 +99,7 @@ ScrollToCursor (Option *opt, int caretPos)
 char *historyText;
 char historyTranslations[] =
 "<Btn3Down>: select-start() \n \
-<Btn3Up>: extend-end() SelectMove() \n";
+<Btn3Up>: extend-end(PRIMARY) SelectMove() \n";
 
 void
 SelectMoveX (Widget w, XEvent * event, String * params, Cardinal * nParams)
-- 
1.7.0.4